lifeup_score()
power_effect(30)

ball_count(-1)
ball_speed(8)
ball_radius()
ball_color(000088)

bar_length()
bar_color(0000ff)
bar_overhang()

direction_up(0)
direction_down(1)
direction_left(0)
direction_right(1)

clear_rate()
front_line()

back_color(000033)
back_image()

item_rate()

item_barlong()
item_barshort()
item_ballbig()
item_ballsmall()
item_speedup()
item_speeddown()
item_lifeup()
item_lifedown()
item_blockincrease()
item_blockdecrease()
item_scoreup()
item_scoredown()
item_blockhide()
item_gothrough()
item_keepin()
item_ballincrease()